Gupta,S.P, & Gupta M. P. (2025). Business Statistics (19th ed.). Sultan chand &sons.
Čikaški stil citiranja (17. izdanje)Gupta,S.P, i Gupta M. P. Business Statistics. 19th ed. Newdelhi: Sultan chand &sons, 2025.
MLA način citiranja (9. izdanje)Gupta,S.P, i Gupta M. P. Business Statistics. 19th ed. Sultan chand &sons, 2025.
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